Changes to base

Changes to base:
commit c7e0ea387bc9364bb9af33aec0f710db19765963
Author: Herbert Valerio Riedel <hvr@gnu.org>
Date:   Tue Feb 25 17:25:44 2014 +0100

    Tweak Haddock markup in Data.Typeable

    Signed-off-by: Herbert Valerio Riedel <hvr@gnu.org>